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| author | Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> | 2018-06-28 15:17:42 +0530 |
|---|---|---|
| committer | Gabriel F. T. Gomes <gabrielftg@linux.ibm.com> | 2019-12-03 13:30:37 -0300 |
| commit | 66fa30828a1eb3d96cb92c080fa0b7376bda9b11 (patch) | |
| tree | 47caacec459b8a73f24d3d6eb304db3b57dde8d8 /stdlib | |
| parent | 5d39f37b260a98cfcc5ac312817ce8de534c00b1 (diff) | |
| download | glibc-66fa30828a1eb3d96cb92c080fa0b7376bda9b11.zip glibc-66fa30828a1eb3d96cb92c080fa0b7376bda9b11.tar.gz glibc-66fa30828a1eb3d96cb92c080fa0b7376bda9b11.tar.bz2 | |
ldbl-128ibm-compat: Add strfmon_l with IEEE long double format
Similarly to what has been done for printf-like functions, more
specifically to the internal implementation in __vfprintf_internal, this
patch extends __vstrfmon_l_internal to deal with long double values with
binary128 format (as a third format option and reusing the float128
implementation).
Tested for powerpc64le, powerpc64, x86_64, and with build-many-glibcs.
Reviewed-by: Paul E. Murphy <murphyp@linux.ibm.com>
Diffstat (limited to 'stdlib')
| -rw-r--r-- | stdlib/strfmon_l.c | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/stdlib/strfmon_l.c b/stdlib/strfmon_l.c index 134dad6..b6b3ba5 100644 --- a/stdlib/strfmon_l.c +++ b/stdlib/strfmon_l.c @@ -29,6 +29,7 @@ #include <stdio.h> #include <string.h> #include "../locale/localeinfo.h" +#include <bits/floatn.h> #define out_char(Ch) \ @@ -96,6 +97,9 @@ __vstrfmon_l_internal (char *s, size_t maxsize, locale_t loc, { double dbl; long double ldbl; +#if __HAVE_DISTINCT_FLOAT128 + _Float128 f128; +#endif } fpnum; int int_format; @@ -106,6 +110,7 @@ __vstrfmon_l_internal (char *s, size_t maxsize, locale_t loc, int group; char pad; int is_long_double; + int is_binary128; int p_sign_posn; int n_sign_posn; int sign_posn; @@ -150,6 +155,7 @@ __vstrfmon_l_internal (char *s, size_t maxsize, locale_t loc, group = 1; /* Print digits grouped. */ pad = ' '; /* Fill character is <SP>. */ is_long_double = 0; /* Double argument by default. */ + is_binary128 = 0; /* Long double argument by default. */ p_sign_posn = -2; /* This indicates whether the */ n_sign_posn = -2; /* '(' flag is given. */ width = -1; /* No width specified so far. */ @@ -270,6 +276,10 @@ __vstrfmon_l_internal (char *s, size_t maxsize, locale_t loc, ++fmt; if (__glibc_likely ((flags & STRFMON_LDBL_IS_DBL) == 0)) is_long_double = 1; +#if __HAVE_DISTINCT_FLOAT128 + if (__glibc_likely ((flags & STRFMON_LDBL_USES_FLOAT128) != 0)) + is_binary128 = is_long_double; +#endif } /* Handle format specifier. */ @@ -324,10 +334,22 @@ __vstrfmon_l_internal (char *s, size_t maxsize, locale_t loc, /* Now it's time to get the value. */ if (is_long_double == 1) { - fpnum.ldbl = va_arg (ap, long double); - is_negative = fpnum.ldbl < 0; - if (is_negative) - fpnum.ldbl = -fpnum.ldbl; +#if __HAVE_DISTINCT_FLOAT128 + if (is_binary128 == 1) + { + fpnum.f128 = va_arg (ap, _Float128); + is_negative = fpnum.f128 < 0; + if (is_negative) + fpnum.f128 = -fpnum.f128; + } + else +#endif + { + fpnum.ldbl = va_arg (ap, long double); + is_negative = fpnum.ldbl < 0; + if (is_negative) + fpnum.ldbl = -fpnum.ldbl; + } } else { @@ -517,6 +539,7 @@ __vstrfmon_l_internal (char *s, size_t maxsize, locale_t loc, info.width = left_prec + (right_prec ? (right_prec + 1) : 0); info.spec = 'f'; info.is_long_double = is_long_double; + info.is_binary128 = is_binary128; info.group = group; info.pad = pad; info.extra = 1; /* This means use values from LC_MONETARY. */ |